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Audi shared some information on their website about the e-tron GT's electric platform, the J1 architecture.

The e-tron GT's will have an 800 volt system like the Porsche Taycan. It'll have two-motors like the Taycan and will produce 582 horsepower and 612 lb-ft of torque. It is estimated to reach 0-62 mph in 3.5 seconds and will hit 124 mph in just over 12 seconds.

J1: The performance electric platform

Shown as a concept vehicle thus far, the Audi e-tron GT performance sedan shows how sports cars will evolve in the electric era. For the e-tron GT, Audi is sharing synergies with the Porsche brand, which developed the J1 architecture.

The Audi e-tron GT concept car is equipped with two permanently excited synchronous motors (PSM) that produce a combined 582 horsepower and 612 lb-ft of torque. A PSM has a rotor with permanent magnets in it and a natural internal magnetic field. In a PSM, the rotor moves in coordination with the magnetic field of the stator (the stationary part of the motor in which the rotor rotates), which is why it is known as a permanently excited synchronous motor. By comparison, an asynchronous motor’s rotor rotates slower than a synchronous speed.

While specifications for the e-tron GT are subject to change, the e-tron GT concept is estimated to reach 62 mph from standstill in 3.5 seconds and 124 mph in just over 12 seconds in production form.

The electrical system in the e-tron GT concept car runs at 800 volts, whereas most modern EVs currently operate at a capacity of 400 volts or less. Volts are a measurement of pressure in an electric circuit, and the J1 platform can accept this level of force thanks to its energy management and cooling systems. Because of this, the e-tron GT is able to charge the battery to 80% in about 20 minutes at a Level 3 DC fast charger with a maximum output of 350 kW.

In the e-tron GT, the battery is located in the underbody, between the axles and is designed with recesses in the rear footwell, ensuring comfort for front- and rear-seat passengers. The body and roof of the e-tron GT are made of carbon fiber-reinforced polymer (CFRP), and the car uses the same multi-material construction philosophy as other Audi vehicles like the A8.

In combination with the low center of gravity, the e-tron GT has quattro all-wheel drive, with an electric motor at the front and rear axles, offering ideal traction for a sports car. The drive management distributes the torque of the electric motors between the axles as needed and also regulates the wheels separately.

The layout allows for numerous suspension and performance features, for example all-wheel steering or a sport differential, providing excellent traction and vehicle dynamics. Electric motors with different outputs can be used in production versions.




Audi e-tron GT platform
 
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